Rail-clamp.



I J. G. GROWSON.

RAIL CLAMP.

APPLICATION FILED AUG. 3 1, 1908.

938,218. Patented 001;. 26, 1909.

J fi 4 and a nut threaded upon the bolt stem and relation to and parallel with the outer edge UNI JOHN C. CBOWSON, OF EEhTi-JACOLA, FLORIDA.

Application filed August 33 s, eeification of Letters Qatent.

atented Get. 26. ices. Serial No. 451,002.

To all whom it may concern:

Be it known that 1, JOHN citizen of the United States, residing at Pensacola, in the countyof Escambia, State of Florida, have invented certain new and useful Improvements in. Rail-Clamps; and I I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

. The present invention has relation to improvements in rail clamps, and it aims, primarily, to provide an extremely simple and efie'ctive device of that nature arranged for attachment to a hollow steel tie in such a manner as to positively prevent any lateral movement or spreading of the rails.

More especially, the invention resides in the'provision of a clamp comprising a bolt whose stem projects upwardly through a perforation formed in the top wall of the tie,

arranged to be tightened against the adjacent base. flange of the rail, the nut being provided with a seat into which is poured a quantity of molten metal sufficient to fill the same, the filling, on cooling, forming a seal which positively prevents any backward rotati-on of the nut.

The invention further resides inthe particular construction of the bolt and nut above referred to, and in the formation, in spaced of the rail flange, of a lip against which the nut contacts also when tightened, the pro-- vision of'this lip preventing any tendency of the nut to rock upon the bolt and strain or-bend the latter.

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which corresponding parts are designated by the same reference numerals throughout the several views.

Ofhe said drawings, Figure 1 is a plan view of the complete invention. Fig. 2 is a longitudinal section taken on the line 2+2 of Fig. 1. Fig. 3 is a transverse section taken on the line 3-3 of the same figure. Fig. 4 is an enlarged vertical section taken through one of the nuts.

Referring more particularly to the drawings, 1 designates, generally, a; hollow steel tie which is rectangular in cross section and has formed in the outer face of its top wall C. CRowsoN, a

a transverse seat 2 in which-fits the base of the rail 3. Upon opposite sides of this seat, there is formed in said top wall, a pair of openings or bolt holes 1, each of which is arranged to receive the lower portion 5 of the stemof a bolt, whose head 6 is arranged to bear against the inner face of the wall in question. The central portion of the stem of each bolt is threaded, as indicated by the numeral 7, while the extreme upper portion thereof is squared, as indicated by the numoral 8, the last mentioned portion having a reduced diameter with reference to the central portion 7, which latter portion, inturn, has a smaller diameter than that of the portion 5. The height of this portion "5 is slightly less than the thickness of the tie wall, so that the shoulder 9 resulting from the formation of the reduced central portion 7, is disposed below the outer face of the tie wall, as shown in Fig. 3.

. Upon the projecting end of each bolt is threaded a nut 10, whose upper face has formed thereupon an upstanding rectangular wall 11, which is arranged concentric with the usual axial opening formed in the body of the nut. The formation of this wall results in the production of a seat 12, as will be apparent. The thickness of .the body portion of the nut is such that the up er-. most thread of the central portion 7 o the bolt, is disposed within the seat above re ferred to, when the nut is tightened. upon the bolt, the shoulder 9 remaining out of contact with the flat bottom face of the nut. The nut is formed with a circumscribing peripheral flange 13', Whose under face 14 is concaved and is arranged to bind against the upper face of the adjacent flange of the rail base, and against a transversely-disposed lip 15, which is likewise formed upon the outer face of the top wall of the tie, the ends of the lip terminating short of the lonitudinal edges of the tie. One of the lips is ocated to the right of the right hand bolt hole, while the other lip is located an-equal distance to the left of the left hand bolt hole.

When the nuts have been tightened upon the bolts to the proper extent, there is poured into each of the seats 11, a quantity of molten lead or other suitable material, sufiicient to fill the same, the filling, when cooled, forming a solid seal around the squared upper portion 8 of the bolt, and thus positively preventing any backward rotation of the nut. The filling also surrounds the uppermost thread of the portion it will be understood scribed, is-impossible, since the rail base is firmly held in pos't'on in its seat by the terior of the tie, the-ends nuts 10, which latter are against movement.

Any tendency of the nuts to be rocked inthemselves held wardly or toward the rail, is checked by the binding engagement of the nutswith the to face of the t1e, while any tendency "towar movement in the opposite direction is prevented by the formation of the lips 15.

The form of clamp shown and described in this case is preferably dmigned for use in connection with a hollow' tie, since this type of tie permits the bolt to be readily fitted in the bolt holes from within the inof which latter are preferably beveled, as shown, to facilitate the positioning of the bolts. 4

While molten lead is preferably utilized as the filling for the seats 12, it is to be understood that there is no positive limitation to this material, since cement may be'used in place thereof, or any other material which may be found suitable.

What is claimed is:

l. The combination of a tie formed with a bolt hole; a rail extending across the tie adjacent the bolt hole; a bolt having its stem projecting upwardly through the bolt hole; a peripherally flanged nut threaded upon the projecting end of the-bolt and arranged to be tightened against the adjacent base flange of the rail; and means carried by backward rotation the nut for preventing thereof.

2. The combination of a hollow tie havin a bolt hole formed in its to wall; a ra extending across saidwall adjacent the bolt hole; a bolt having its head bearing against the inner face of said wall and its stem projecting through the bolt hole; a peripherally flanged nut threaded upon the projecting end of the bolt and arranged to be-tightene against the adjacent base flan e of the rail; and means carried by the nut for preventing backward rotation thereof.

3. The combination of atie formed with a bolt hole; a rail extending across the tie adjacent the'bplt hole; a bolt having its stem projecting upwardly through the bolt hole; a peripherally projecting end of the-bolt and having an axially located seat formed in its top face, said nut bein arranged to be tightened againstthe adjacent base flange of-the rail;

and a seal filling said seat and surrounding the bolt end to prevent backward rotation of the nut.

4:. The combination of a hollow tie having a bolt hole formed in its top wall; a rail when. once 1 properly clamped in the manner above dehole;

top face,

hole; a periphera ly flanged nut threaded upon the 1 li of the bolt hole, said nut a bolt hole; a rail extending wall adjacent the bolt its head bearing against extending across said hole; a bolt having jecting through the bolt hole; a peripherally flanged nut having an axial seat formed in its top face said nut being arranged to be tightened against the adjacent base flange of the rail; and a seal filling said seat and surrounding the bolt and to prevent backward rotation of the nut.

5. The combination of a tie formed with a bolt hole; a rail extending across the tie adjacent the bolt ,hole; a bolt having its threaded stem projec ing upwardly through the bolt hole; a peripherally flanged nut threaded upon the projecting end of the stem and having an axially in its top face, tightened against the adjacent base flange of the rail; and a seal filling said seat and surrounding the bolt end, to prevent backlocated seat formed ward rotation of the nut.

a hollow tie having 6. The combination of a bolt hole formed in its upper wall; a' rall extending across said wall a jacent the bolt hole; a bolt having stem projecting upwardly through the bolt a peripherally flanged nut threaded upon the projecting end of thestem and having an axially located seat formed in its said nutbeing arranged to be tightad'acent base ened against the 111g said seat and surrail; and, a seal rounding the bolt end, to prevent backward rotation of the nut. r

7. The combination xofa tie formed with a bolt hole; a rail extending across the tie at one side of the bolt hole; a stem projecting u hole; a periphera y flanged nut threaded upon the projecting end of the provided upon the tie at the other side say-1d bolt,-

be tightened upon contact with the adjafiange into binding cent base flange of the rail and with said 11p. v

8. The combination of a hollow tie'having a bolt hole formed in its upper wall; a-ra' extending across said wall at one side of the bolt hole; a bolt havin itshead bearing against the inner face 0 said wall'and its stem projecting u wardly through the bolt flanged nut-threaded upon the projecting end of the bolt; and a provided upon the tie at the other side be tightened upon said bolt, to bring its flange into binding contact with the adjacent base flange of the rail and wlth said l 1 9.- The combination of a tie formed w t across the tie at one side of the'bo'lt hole; a bolt having its threaded stem projecting upwardly throughthe .bolt hole; a peripherally-flanged nut saidnut being arranged tobe bolt having its 1 wardly through the boltbeing arranged t0.

flange of the bolt; and a li of the bolt hole, said nut beingarranged to to bring its 90 its head bearing against the inner face of said wall and its threaded threaded u on the projecting end of the stem and formed in its top face, said nut being arranged to be tightened against, the adjacent base flange of the rail;- a seal filling said seat and surrounding the bolt end, tov revent backward rotation of the nut; anda ip provided u on the tie at the other side of the bolt ho e,v said nut being arranged to be aving an axially located seat tightenedunon said bolt to bring its flange 10 into binding 'contat with the ad acent base flange of the rail and with said lip.

B. E. COOKSEY, -H. C. M. CAB'I'ENEY. 

